Description : Assertion : In potentiometer experiment, null point cannot be obtained if emf of unknown battery is more than the emf of known battery. Reason : By in
Last Answer : Assertion : In potentiometer experiment, null point cannot be obtained if emf of unknown battery is ... If Assertion is false but Reason is true.
Description : Two cells of emfs `E_(1)` and `(E_(2) (E_(1) gt E_(2))` are connected as shows in Fig. `6.45`. When a potentiometer is connected between `A` and `B`,
Last Answer : Two cells of emfs `E_(1)` and `(E_(2) (E_(1) gt E_(2))` are connected as shows in Fig. `6.45`. When a ... `3:1` B. `1:3` C. `2:3` D. `3:2`
Description : In potentiometer experiment, a cell of emf `1.25 V` gives balancing length of 30 cm. If the cell is replaced by another cell, then balancing length is
Last Answer : In potentiometer experiment, a cell of emf `1.25 V` gives balancing length of 30 cm. If the cell is replaced by another ... . `~=1.47 V` D. `~=1.37 V`
Description : Two nonideal batteries are connected in parallel. Consider the following statements: (A)The equivalent emf is smaller than either of the two emfs. (B)
Last Answer : Two nonideal batteries are connected in parallel. Consider the following statements: (A)The equivalent emf is ... wrong D. Both A and B are correct
Description : the nonideal batteries are connected in series. Consider the following statements : (A)The equivalent emf is larger than either of the two emfs. (B) t
Last Answer : the nonideal batteries are connected in series. Consider the following statements : (A)The equivalent emf is ... wrong D. Each of A and B is wrong
Description : In a potentiometer experiment the balancing with a cell is at length 240 cm. On shunting the cell with a resistance of `2Omega`, the balancing length
Last Answer : In a potentiometer experiment the balancing with a cell is at length 240 cm. On shunting the cell with a ... Omega` C. `4 Omega` D. `2 Omega`
Description : Two cells of emfs approximately 5V and 10V are to be accurately compared using a poteniometer of length 400 cm.
Last Answer : Two cells of emfs approximately 5V and 10V are to be accurately compared using a ... usually used for comparing resistances and not voltages
Description : In a relational database model, NULL values can be used for all but which one of the following? (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL. (B) To ... D) To fill a column in a tuple when that column does not really exist for that particular tuple.
Last Answer : (A) To allow duplicate tuples in the table by filling the primary key column(s) with NULL.
Description : In a potentiometer experiment, the galvanometer shows no deflection when a cell is connected across `60 cm` of the potentiometer wire. If the cell is
Last Answer : In a potentiometer experiment, the galvanometer shows no deflection when a cell is connected across `60 cm` of ... ` C. `1.2Omega` D. `1.5Omega`
Description : In the illustrated amplifier, the RESET potentiometer A1R2 sets the stability of the control loop by changing the reset time constant. As the potentiometer is turned clockwise _________. EL-0060 A. ... is increased to the summing point at terminal 5 D. response time is increased decreasing stability
Last Answer : Answer: B
Description : In case of levelling, backsight is (a) A fixed point of known elevation (b) The last staff reading taken before shifting the instrument (c) The first staff reading taken after setting the instrument (d) Any staff reading taken on a point of unknown elevation
Last Answer : (c) The first staff reading taken after setting the instrument
Description : . A variation of an original thought experiment in ethics and moral philosophy goes thus: A surgeon has five patients each in need of a different organ, but unfortunately no organ is available. ... word name is the original problem, first proposed by Phillipa Foot and involving a driver, famous?
Last Answer : Trolley Problem.
Description : Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointers to mid-scale B. change the meter's batteries C. center the meter's pointer at infinity D. short the test leads and calibrate the meter
Last Answer : Answer: D
Description : Before measuring an unknown resistance with an ohmmeter, you should _____________. A. adjust the meter's pointer to mid-scale B. short the test leads and calibrate the meter reading to 'zero' C. change the meter's batteries D. center the meter's pointer at infinity
Last Answer : Potentiometer sensitivity can be increased by Increasing the length of potentiometer wire.
Description : The result of the logical comparison (NULL = NULL) will be… And in the case of (NULL != NULL)
Last Answer : False in both cases.
Description : The number of strings of length 4 that are generated by the regular expression (0|∈) 1+2* (3|∈), where | is an alternation character, {+, *} are quantification characters, and ∈ is the null string, is: (A) 08 (B) 10 (C) 11 (D) 12
Last Answer : (D) 12
Description : An electron in potentiometer experiences a force `2.4xx10^(-19)N`. The length of potentiometer wire is 6m. The emf of the battery connected across the
Last Answer : An electron in potentiometer experiences a force `2.4xx10^(-19)N`. The length of potentiometer wire is 6m. The emf of ... 6 V B. 9 V C. 12 V D. 15 V
Description : A potentiometer wire of length 10 m and resistance `10 Omega` per meter is connected in serice with a resistance box and a 2 volt battery. If a potent
Last Answer : A potentiometer wire of length 10 m and resistance `10 Omega` per meter is connected in serice with a ... Omega` C. `190 Omega` D. `90 Omega`
Description : A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a resistance `R` and a cell of emf `2V` of negli
Last Answer : A potentiometer wire of length `100 cm` having a resistance of `10 Omega` is connected in series with a ... Omega` C. `790 Omega` D. `840 Omega`
Description : A potentiometer wire has length `4 m` and resistance `8 Omega`. The resistance that must be connected in series with the wire and an accumulator of e.
Last Answer : A potentiometer wire has length `4 m` and resistance `8 Omega`. The resistance that must be connected in ... Omega` C. `44 Omega` D. `48 Omega`
Description : In given figure, the potentiometer wire AB has a resistance of `5 Omega` and length 10 m . The balancing length AM for the emf of 0.4 V is
Last Answer : In given figure, the potentiometer wire AB has a resistance of `5 Omega` and length 10 m . The balancing length AM for ... B. 4 m C. `0.8` m D. 8 m
Description : The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E volt. It is employed to measure the e.m.f. of a battery wh
Last Answer : The length of a wire of a potentiometer is 100 cm, and the e.m.f. of its standard cell is E ... current in the potentiometer wire D. `(30E)/(100)`
Description : AB is a potentiometer wire of length 100 cm and its resistance is `10Omega`. It is connected in series with a resistance R = 40 `Omega` and a battery
Last Answer : AB is a potentiometer wire of length 100 cm and its resistance is `10Omega`. It is connected in series with a ... `1.6V` C. `0.08V` D. `0.16V`
Description : A 2 V battery, a `990Omega` resistor and a potentiometer of 2 m length, all are connected in series of the resistance of potentiometer wire is `10Omeg
Last Answer : A 2 V battery, a `990Omega` resistor and a potentiometer of 2 m length, all are connected in series of the resistance ... 0.01Vm^(-1)` D. `0.1Vm^(-1)`
Description : Potentiometer wire of length `1 m` is connected in series with `490 Omega` resistance and `2 V` battery. If `0.2 mV/cm` is the potential gradient, the
Last Answer : Potentiometer wire of length `1 m` is connected in series with `490 Omega` resistance and `2 V` battery. If ... 7.9Omega` C. `5.9Omega` D. `6.9Omega`
Description : Assertion : Agriculture output increased several times after introduction of DDT. Reason : DDT was the first insecticide used on a wide scale.
Last Answer : Assertion : Agriculture output increased several times after introduction of DDT. Reason : DDT was the ... but reason is wrong D. Both are wrong
Description : A resistance R is to be measured using a meter bridge. Student chooses the standared resistance S to be `100 Omega`. He finds the null point at `l_(1)
Last Answer : A resistance R is to be measured using a meter bridge. Student chooses the standared resistance ... a more accurate measurement with a meter bridge
Description : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.
Last Answer : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is ... B. 50 cm C. 80 cm D. 100 cm
Description : Which one of the following is true? (A) The resolvent of two Horn clauses is not a Horn clause. (B) The resolvent of two Horn clauses is a Horn Clause. (C) If we resolve a negated goal G against a ... negated goal G against a fact or rule A to get clause C then C has positive literal or null goal.
Last Answer : (B) The resolvent of two Horn clauses is a Horn Clause.
Description : When electric potential is null, then the electric field intensity will be a) 0 b) 1 c) dA/dt d) –dA/dt
Last Answer : d) –dA/dt
Description : If a research finding is statistically significant, then ____. a. The observed result is probably not due to chance b. The observed result cannot possibly be due to chance c. The observed result is probably a chance result d. The null hypothesis of “no relationship” is probably true
Last Answer : a. The observed result is probably not due to chance
Description : Consider the following statements regarding relational database model: (a) NULL values can be used to opt a tuple out of enforcement of a foreign key. (b) Suppose that table T has only one candidate key. If Q is in 3NF, then it is ... true. (C) (b) and (c) are true. (D) (a), (b) and (c) are true.
Last Answer : (D) (a), (b) and (c) are true.
Description : Skip zone is otherwise known as A. Empty zone B. Shadow zone C. Null zone D. Zone of silence
Last Answer : D. Zone of silence
Description : A `1 Omega` resistance in series with an ammeter is balanced by 25 cm of potentiometer by 50 cm. The ammeter shows a reding of `1.5 A`. Then, the erro
Last Answer : A `1 Omega` resistance in series with an ammeter is balanced by 25 cm of potentiometer by 50 cm. The ammeter shows a ... B. 3A C. `1.3 A` D. `0.3A`
Description : The problem-solving agent with several immediate options of unknown value can decide what to do by just examining different possible sequences of actions that lead to states of known value, and then choosing the ... . This process of looking for such a sequence is called Search. a) True b) False
Last Answer : a) True
Description : An instrument commonly used for the measurement of atmospheric pressure is known as A. Manometer B. Barometer C. Calorimeter D. Potentiometer
Last Answer : Barometer
Description : In order for the two figures shown below to be similar the length of the unknown side must be . If necessary round your answer to the nearest tenth.?
Last Answer : Need answer
Description : Photo diode operates in the _______ condition (a) Forward bias (b) null (c) both a & d (d) reverse bias
Last Answer : (d) reverse bias
Description : In a research on the effect of child-rearing practices on stress-proneness of children in competing school projects, the hypothesis formulated is that child rearing practices do influence stress-proneness'. At ... be rejected. (D) No decision can be taken in respect of the research hypothesis.
Last Answer : (B) The research hypothesis will be accepted.
Description : Which of the following statements is true in the context of the testing of a hypothesis? (A) It is only the alternative hypothesis, that can be tested. (B) It is only the null hypothesis, ... the null hypotheses can be tested. (D) Both, the alternative and the null hypotheses cannot be tested.
Last Answer : (B) It is only the null hypothesis, that can be tested.
Description : Following an experiment, Jamie estimates that his probability of making a three-pointer with a basketball is 0.8. If he shoots 160 attempts from the three-point line, how many times can he expect to make a three-point basket A. 32 B. 80 C. 128 D. 160?
Last Answer : 128
Description : Which of the following control techniques available to the researcher controls for both known and unknown variables? a. Building the extraneous variable into the design b. Matching c. Random assignment d. Analysis of covariance
Last Answer : c. Random assignment
Description : Assertion A: For a given depth of cut, the output of a power shovel can be increased by decreasing the angle of swing. Reason R: If the angle of swing is decreased, the cycle time will be decreased. Select the ... explanation of A (C) A is true but R is false (D) A is false but R is true
Last Answer : (A) Both A and R is true and R is the correct explanation of A
Description : Assertion : Two 60 W bulbs are first connected in series and then in parallel with same battery. Total power produced in second case will become four
Last Answer : Assertion : Two 60 W bulbs are first connected in series and then in parallel with same battery. ... D. If Assertion is false but Reason is true.
Description : Assertion Two infinitely long wires `A` and `B` carry unequal currents both in inward direction. Then, there is only point (excluding the ponts at inf
Last Answer : Assertion Two infinitely long wires `A` and `B` carry unequal currents both in inward direction. Then ... . If Assertion is false but Reason is true.
Description : What role did racism play in the Tuskegee experiment and the scottsboro boy case?
Last Answer : Bit ch eat my balls socratic
Description : A researcher designs an experiment to test how variables interact to influence how well children learn spelling words. In this case, the main purpose of the study was: a. Explanation b. Description c. Influence d. Prediction
Last Answer : a. Explanation
Description : A hypothesis that States the nature (positive or negative) of the interaction between two or more variables is called a. Associated Hypothesis b. Casual Hypothesis c. Null Hypothesis d. Directional Hypothesis
Last Answer : d. Directional Hypothesis
Description : The language of all non-null strings of a’s can be defined by a context free grammar as follow : S→a S|S a| a The word a3 can be generated by ................ different trees. (A) Two (B) Three (C) Four (D) Five
Last Answer : (C) Four Explanation: